"Ent. according to Act of Congress A.D. 1863 by Chas. Magnus in the Clerk's Office of the Southern District of New York." LC Panoramic maps (2nd ed.), 950.4 LC Civil War maps (2nd ed.), 522.3 Available also through the Library of Congress Web site as a raster image. Indexed for points of interest. DCP Vault Phillips. Washington, 7 Reduced photocopy cataloged separately: G3884.A3A3 1863 ...